PAT Testing for London Landlords: Frequency Rules and What You Need to Know
PAT testing of portable appliances is a widely misunderstood obligation for London landlords. This guide clarifies what the law actually requires, how frequently testing should be carried out, and how to manage PAT compliance across a rental portfolio.
What PAT Testing Is and Why It Matters for Landlords
Portable appliance testing (PAT) is the inspection and electrical testing of portable electrical equipment to verify that it is safe to use. The term portable encompasses any electrical appliance that is connected to the mains via a plug rather than being permanently wired — including fridges, washing machines, kettles, toasters, lamps, televisions, and any other electrical equipment provided by the landlord as part of a furnished or part-furnished tenancy. PAT testing checks the condition of the appliance, the integrity of the cable and plug, and the electrical safety of the appliance using a calibrated PAT tester device.
For London landlords, PAT testing of landlord-provided appliances is an important part of demonstrating that the property is safe and well maintained. While there is no single piece of legislation that explicitly requires landlords to PAT test appliances in rental properties, the general duty of care under the Landlord and Tenant Act 1985 and the Electrical Equipment (Safety) Regulations 2016 creates a practical obligation to ensure that any electrical appliances provided to tenants are safe. A landlord who provides a faulty appliance that causes injury or a fire faces potential civil liability and, in serious cases, criminal exposure under health and safety legislation.
How Frequently Should PAT Testing Be Carried Out
The Health and Safety Executive (HSE) guidance on electrical safety does not specify a fixed interval for PAT testing that applies to all situations. Instead, it recommends that testing frequency should be risk-based, taking into account the type of appliance, the environment in which it is used, and the results of previous inspections. For a domestic rental property, the HSE guidance and the IET code of practice for in-service inspection and testing of electrical equipment suggest the following indicative frequencies as a starting point.
For a furnished residential rental property, PAT testing of all landlord-provided appliances at the start of each new tenancy and every one to two years thereafter is a widely adopted approach in the London property management sector. This frequency reflects the higher risk of appliance damage in rented properties compared with owner-occupied homes, and the fact that tenants may not report damaged appliances or cables promptly. For HMO properties with higher occupancy and more intensive appliance use, annual PAT testing is considered best practice. Some London local authorities specify annual PAT testing as a condition of HMO licence approval.
Which Appliances Need to Be PAT Tested
PAT testing applies to any portable electrical appliance provided by the landlord as part of the let. In a fully furnished property, this may include a wide range of items. In a part-furnished or unfurnished property, it applies only to white goods, fixtures, and any other electrical items left by the landlord — such as a washing machine, dishwasher, fridge, or free-standing lamps.
Appliances brought into the property by tenants are not the landlord responsibility to test. However, a landlord who allows tenants to use their own appliances alongside landlord-provided ones — for example, allowing tenants to add their own plug-in appliances to a shared HMO kitchen — may wish to include a clause in the tenancy agreement about the condition of tenant-owned appliances, since a fault in a tenant appliance that causes a fire could affect the whole property and other residents.
PAT Testing Records and Documentation
After PAT testing is completed, the tester should provide a register of all appliances tested, the result for each appliance (pass or fail), the test date, and the name and qualification of the tester. Appliances that pass testing are typically labelled with a PAT pass sticker showing the test date and next due date. Appliances that fail testing must be removed from use immediately and either repaired, replaced, or disposed of.
Maintaining a complete PAT register for each property is important for landlords managing multiple properties. The register demonstrates due diligence in the event of an insurance claim, a local authority compliance inspection, or a civil dispute. Digital PAT registers issued by the testing contractor and stored in a property management system are the most practical format for portfolio landlords. Prestige Engineers carry out PAT testing for London landlords across all property types and all boroughs, with digital registers and appliance labelling provided on the day of testing.